445/450: gnu: python-deprecation: Switch to pyproject.

[guix-commits]

guix_mirror_bot pushed a commit to branch python-team
in repository guix.

commit 166506ac006d049e7a058f55e63e093da4cd9e55
Author: Sharlatan Hellseher <sharlata...@gmail.com>
AuthorDate: Fri Sep 5 21:58:53 2025 +0100

    gnu: python-deprecation: Switch to pyproject.
    
    * gnu/packages/python-xyz.scm (python-deprecation)[build-system]: Switch
    to pyproject-build-system.
    [arguments] <test-backend>: Use 'unittest.
    <phases>: Add 'drop-unittest2.
    [native-inputs]: Remove python-unittest2; add python-setuptools.
    
    Change-Id: Ibe9bf3c94ca1137c64f6415d6f0b94e999c03cc5
---
 gnu/packages/python-xyz.scm | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index c3ba4e2f68..dd2ab906dd 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -20840,11 +20840,22 @@ code.")
        (sha256
         (base32
          "1zqqjlgmhgkpzg9ss5ki8wamxl83xn51fs6gn2a8cxsx9vkbvcvj"))))
-    (build-system python-build-system)
+    (build-system pyproject-build-system)
+    (arguments
+     (list
+      #:test-backend #~'unittest
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'unpack 'drop-unittest2
+            ;; See: <https://github.com/briancurtin/deprecation/issues/54>.
+            (lambda _
+              (substitute* "tests/test_deprecation.py"
+                (("import unittest2")
+                 "import unittest as unittest2")))))))
+    (native-inputs
+     (list python-setuptools))
     (propagated-inputs
      (list python-packaging))
-    (native-inputs
-     (list python-unittest2))
     (home-page "https://deprecation.readthedocs.io/";)
     (synopsis "Python library to handle automated deprecations")
     (description